West Nile virus cases down in 2013

June 21, 2014 6:23 PM

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West Nile virus cases down in 2013

There were fewer reported cases of West Nile virus in the United States in 2013 compared with the previous year, according to a new report from the Centers for Disease Control and Prevention.

Of the cases reported in 2013, 1,267 were severe, defined as causing inflammation in the brain or surrounding tissues. Cases peaked in early September, and 90 percent of the people infected with the virus became ill between July and September, the report said.

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